DIY: Maximal rectangle

Solve the interview question "Maximal rectangle" in this lesson.

Problem statement

Given an m x n binary matrix containing 0's and 1's. Find the largest rectangle containing only 1's and return its area.


The input will be an m x n matrix of 0's and 1's. The following is an example input:


Level up your interview prep. Join Educative to access 80+ hands-on prep courses.